<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style type="text/css">
        div{
            height: 200px;
            width: 200px;
            background-color: red;
        }
    </style>
</head>
<body>
    <div>
        <p><b>404</b></p>
        <p>没有找到该页面</p>
    </div>
</body>
</html>